Do not think if they alternate days for EE would go over very well for those staying at the deluxe resorts .
Like all other changes, probably not.
To me it reads that Universal is going to say you can come in early on these days that we decide,to the park we decide. Unless they are planning on charging for an additional EE that would cover both parks, as well as alternate the days.
WDW does something similar except its with the parks. Each day is a different EE park. I forget what the schedule is but its something like Sun MK,Mon,Epcot, Tues AK, Weds DHS, Thurs MK, Fri Epcot, Sat AK.
I can think of a couple of different things that Universal can do. Some short term some long term.
Option 1: Limit EE to IOA for the short term until crowds settle from the opening.
Option 2: Alternate early entry between the resorts.
Option 3: Alternate early entry during certain times of the year, such as high demand times like Christmas, summer etc. The rest of the year, no change, as it is now.
Option 4: Alternate EE between the resorts, and charge for an upgrade for both parks or park of your choice.
Option 5: No change until US management gets a better sense on how the new resort affects EE.
Option 6: New resort gets a fee based EE with outside hotels following suit.
Time will tell what US is thinking.